est.)

Singapore
total: 36.76 years
male: 36.4 years
female: 37.07 years (2005 est.)

Slovakia
total: 35.43 years
male: 33.85 years
female: 37.25 years (2005 est.)

Slovenia
total: 40.23 years
male: 38.65 years
female: 41.75 years (2005 est.)

Solomon Islands
total: 18.63 years
male: 18.5 years
female: 18.76 years (2005 est.)

Somalia
total: 17.59 years
male: 17.53 years
female: 17.65 years (2005 est.)

South Africa
total: 23.98 years
male: 23.12 years
female: 24.86 years (2005 est.)

Spain
total: 39.51 years
male: 38.18 years
female: 40.93 years (2005 est.)

Sri Lanka
total: 29.44 years
male: 28.38 years
female: 30.51 years (2005 est.)

Sudan
total: 18.07 years
male: 17.86 years
female: 18.29 years (2005 est.)

Suriname
total: 26.13 years
male: 25.72 years
female: 26.58 years (2005 est.)

Swaziland
total: 18.72 years
male: 18.53 years
female: 18.92 years (2005 est.)

Sweden
total: 40.6 years
male: 39.49 years
female: 41.75 years (2005 est.)

Switzerland
total: 39.77 years
male: 38.75 years
female: 40.81 years (2005 est.)

Syria
total: 20.37 years
male: 20.24 years
female: 20.51 years (2005 est.)

Taiwan
total: 34.14 years
male: 33.71 years
female: 34.57 years (2005 est.)

Tajikistan
total: 19.73 years
male: 19.45 years
female: 20.02 years (2005 est.)

Tanzania
total: 17.62 years
male: 17.36 years
female: 17.89 years (2005 est.)

Thailand
total: 30.88 years
male: 30.11 years
female: 31.66 years (2005 est.)

Togo
total: 17.78 years
male: 17.42 years
female: 18.14 years (2005 est.)

Tonga
total: 20.46 years
male: 19.93 years
female: 21.02 years (2005 est.)

Trinidad and Tobago
total: 30.91 years
male: 30.46 years
female: 31.44 years (2005 est.)

Tunisia
total: 27.29 years
male: 26.78 years
female: 27.82 years (2005 est.)

Turkey
total: 27.7 years
male: 27.52 years
female: 27.89 years (2005 est.)

Turkmenistan
total: 21.56 years
male: 20.68 years
female: 22.44 years (2005 est.)

Turks and Caicos Islands
total: 27.35 years
male: 28.08 years
female: 26.62 years (2005 est.)

Tuvalu
total: 24.45 years
male: 23.36 years
female: 25.85 years (2005 est.)

Uganda
total: 14.97 years
male: 14.87 years
female: 15.08 years (2005 est.)

Ukraine
total: 38.22 years
male: 34.